A vulnerability was found in mod_proxy_cluster. The issue is that the <Directory> directive should be replaced by the <Location> directive as the former does not restrict IP/host access as `Require ip IP_ADDRESS` would suggest. This means that anyone with access to the host might send MCMP requests that may result in adding/removing/updating nodes for the balancing. However, this host should not be accessible to the public network as it does not serve the general traffic.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade mod_proxy_cluster | Jul 1, 2025 | Apr 23, 2025 |
| Oracle_linux | — | Upgrade mod_proxy_cluster | Jun 30, 2025 | Feb 28, 2025 |
| Redhat_linux | — | Upgrade mod_proxy_cluster-debuginfoUpgrade mod_proxy_clusterUpgrade mod_proxy_cluster-debugsource | Jun 26, 2025 | Apr 23, 2025 |
| Rocky_linux | — | Upgrade mod_proxy_cluster-debugsourceUpgrade mod_proxy_cluster-debuginfoUpgrade mod_proxy_cluster | Oct 6, 2025 | Oct 3, 2025 |
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